Method for noninvasive estimation of left ventricular end diastolic pressure based on analysis of heart wall vibration

Physical Considerations on Bernoulli's Law for Mitral Valve Regurgitation

“…Thus, diagnosing a decline in heart performance could be critical for preventing heart problems. To understand heart performance, mechanical factors describing heart dynamics such as heart elastic stiffness, intracardiac pressure, and heart systolic force need to be considered, and past studies have intensively attempted to measure these quantities including pressure drop in valve stenosis, [1][2][3][4] absolute intracardiac pressure, [5][6][7] and elastic stiffness of heart tissues. [8][9][10][11][12] However, most of these quantities are still difficult to accurately measure at the practical level.…”

Noninvasive estimation of left-ventricular end-diastole elasticity by analysing heart wall vibrations

“…Introduction: Left ventricular (LV) pressure and its elasticity are significant parameters necessary for the clinical diagnosis of heart diseases. In particular, knowledge of the LV end-diastolic pressure (EDP), P ED , is usually needed to assess LV functioning in clinical settings; a noninvasive method to measure this was previously presented [1]. The eigenfrequency was found by using a short-time Fourier transform to the velocity signal on the human heart wall [2] which is measured transcutaneously in vivo by the phased tracking method [3] using ultrasound.…”